TY - JOUR AU - Semenov, A. D. AU - Gousev, Y. P. AU - Nebosis, R. S. AU - Renk, K. F. AU - Yagoubov, P. AU - Voronov, B. M. AU - Gol’tsman, G. N. AU - Syomash, V. D. AU - Gershenzon, E. M. PY - 1996 DA - 1996// TI - Heterodyne detection of THz radiation with a superconducting hot‐electron bolometer mixer T2 - Appl. Phys. Lett. JO - Appl. Phys. Lett. SP - 260 EP - 262 VL - 69 IS - 2 KW - NbN HEB mixers AB - We report on the use of a superconducting hot‐electron bolometer mixer for heterodyne detection of terahertz radiation. Radiation with a wavelength of 119 μm was coupled to the mixer, a NbN microbridge, by a hybrid quasioptical antenna consisting of an extended hyperhemispherical lens and a planar logarithmic spiral antenna. We found, at an intermediate frequency of 1.5 GHz, a system double side band noise temperature of ≊40 000 K and conversion losses of 25 dB. We also discuss the possibilities of further improvement of the mixer performance. SN - 0003-6951 UR - http://aip.scitation.org/doi/10.1063/1.117943 UR - https://doi.org/10.1063/1.117943 DO - 10.1063/1.117943 N1 - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1610), last updated on Wed, 26 May 2021 11:21:50 -0500 ID - Semenov_etal1996 ER -